Setting machine



July 20, 1937. J. GUALTIERE ET AL I v 8 SETTING MACHINE Filed Dec. 8, 1954 I 5 Sheets-Sheet 1 44; FM ('i'A ORNEYS I INVENTORS July 20, 1937.

J. GUALTIERE ET AL SETTING MACHINE Fil'ed. Dec. 8, 1934 ulll l lgl l ull l! 5 Sheets-Sheet 2 INVE TORS July 20, 1937. JuGUAl-TIERE ET A;- 2,087,596

SETTING MACHINE Filed Dec. 1954 INVENTQRS fizlzzzw fizzalfzere am! 56360796 Meyer 5 Sheets-Sheei s July 20, 1937.

J GUALTIERE ET AL SETTING MACHINE Filed Dec. 8, 1934 5 Sheets-Sheet 5 m m% m Ed 0 0 .ma@ IQ A 1 6 9 M a arrd Patented July 20, 1937 UNiTED sTArs mist FATE FFlCE SETTING MACHINE New York Application December 8, 1934, Serial No. 756,620

6 Claims.

The present invention relates to rivet setting machines and more especially to a type of machine which sets a two piece rivet or fastener.

The machine comprising an embodiment of the present invention feeds one part of the fastener above the work and feeds the other part beneath the work with a surety of functioning that is important in this type of machine. The part of the fastener being fed beneath the work is covered during the time the fastener is being set, and, therefore, it is essential that this lower feed shall be of such type that it is positive and sure in its action, otherwise, the operator does not know of a misfed under member until after a number of the finished buttons or rivets have been applied. If, however, the feed should accidentally miss as to the upper member, it is within the view of the operator and the machine may be stopped and the defect corrected, but where the under member accidentally misses feeding, this is ordinarily not observable by the operator and the result is defective work with the upper member distorted in place so that it is both expensive and difficult to remove the defective parts from the finished work when an under feed has missed.

The present machine overcomes the difliculties of the known art by providing a visual under feed which is positive and definite in its operations and also simple in construction. The under members of the rivet or fastener are within the sight of the operator at least one step in advance of the final operations, and the one step to the final position is a positive movement which insures the positive feed of an under fastener member if such a member is in sight position before the machine is operated.

The under feed in the present machine comprises a rotatable spiral adapted to make one revolution for each operation of the machine. The spiral carries a plurality of under fastener members, all of which are visible when the machine is in operation. Consequently, if there is a member one step from the riveting anvil and the machine is operated, this member will be positively transferred to the riveting anvil where it is set in place to receive the cooperating portions of the upper member that completes the finished fastener or rivet. The present machine is designed to operate on either two part snap buttons, two part snap heads, or two part rivets, that are riveted through cloth, leather, or other material by placing one part on the underside of the material and expanding an anchoring part which has been driven through from the opposite side of the material.

Other and further objects of the present invention will in part be obvious and will in part be pointed out hereinafter by reference to the drawings forming a part of the specification.

It is to be recognized that the present invention is to be understood as illustrative rather than in the limiting sense since theinvention may be embodied in constructions other than those specifically disclosed herewith.

Fig. 1 is a side elevational view of the machine with a portion thereof shown in section.

Fig. 2 is an elevational view on line 2-2, Fig. l, of the rear of the machine showing the drive mechanism connecting the main shaft with the upper counter shaft and with the fly wheel removed.

Fig. 3 is an elevational view of the front of the machine illustrating the rivet setting mechanism.

Fig. 4 is va detail view showing the under feed mechanism operating as a cut-off for feeding rivet receiving caps.

Fig. 5 is a view of the front of the machine with the rivet anvil removed and showing the guide plates in section and with a cap in position to be delivered over the anvil.

Fig. 6 is a detail view on line 66, Fig. 7, of the anvil showing portions of the device in'section and illustrating a feed spiral adapted for feeding cap buttons.

Fig. 7 is a detail end view on line 'l-'l, Fig. 6, of the anvil and feed pocket with a part of the device in section.

Fig. 8 is a'plan view of the feed pocket.

Fig. 9 illustrates a hollow under feed spiral withthe sides cut away to permit the exit of lint and foreign matter through the feed spiral.

Fig. 10 is a detail View of the operating mechanism and the mounting for the cap feed box.

Fig. 11 is a detail viewron line H-l I, Fig. 12, of the feed fingers for ,hollow flanged rivets adapted to be carried downward by the riveting plunger, with the feed chute removed and part of the front frame in section.

Fig. 12 is a front view on line iii-l2, Fig. 11, of the construction shown in Fig. 11.

Fig. 13 is an end view on line l3--l3, Fig. 14, of the single revolution clutch mechanism with the fly wheel removed.

Fig. 14 is a, side elevation of the single revolution clutch mechanism. 7

Fig. 15 is a plan view of the cover plate.

Referring to the drawings and more especially to Figs. 1 to 3, a pedestal frame I which carries the usual pedal operating mechanism supports the head frame 2 in which the major working portions of the device are assembled. A heavy drive wheel 4 is mounted to normally rotate upon a main shaft 5 which is rotatable in bearings in the lower-portion of the head frame 2. One end of the main shaft 5 rotates in a. bearing 6 and the other end rotates in a bearing 1 (Fig. 6), both of which are mounted in a lower arm 8 of the head frame 2. Rigidly and fixedly keyed or otherwise attached to the main shaft 5 is a clutch collar 9 carrying a clutch dog III which is adapted to engage either of the clutch studs II and I2 carried by the drive wheel 4 so that when the clutch dog l9 is in engagement with one of the clutch studs, the drive wheel rotates the mainshaft 5 otherwise the drive wheel rotates idly on the shaft 5.

The clutch mechanism which will be explained in detail later is of the type which permits one complete revolution of the main shaft and then the clutch dog is disengaged from the fiy wheel. Also rigidly secured to the main shaft 5 is a brake disc M. This brake disc is very slightly eccentric relative to the axis of the main shaft or in other words, it is provided with a high Spot or arc. A stationary brake shoe I5 is mounted to cooperate with the brake disc and is adjustable by a lock stub screw I6. The construction of the brake disc I4 and the brake shoe mechanism |5|6 is such that the high spot on the brake disc comes into engagement with the brake shoe l5 when the main shaft 5 has made one complete revolution and immediately after the clutch dog I9 is withdrawn from the clutch studs on the fly wheel so that the main shaft is brought to a stop at approximately the same position each time the machine is operated. An eccentric I1 is also carried by the drive shaft 5 and cooperates with an eccentric collar l8 (Figs. 1 and 2).

This eccentric collar carries a connecting bar l9 which is pivoted to an arm 29 fixedly secured to a counter shaft 2| so that as the main shaft 5 makes one complete revolution, the counter shaft 2| is oscillated. A dog pin 22 is carried by the arm 29 and supports a ratchet dog 24. This ratchet dog engages the ratchet teeth of a ratchet wheel 25 when the arm 29 is oscillated. The construction of the dog is such as to cause the dog to operate by gravity to engage the teeth of the ratchet wheel 25. This ratchet wheel is secured to a collar 26 (Fig. 10) that is anchored to a small shaft 2'! which is journalled to rotate in a bearing in the end of the counter shaft 2|. The small shaft 21 extends through a hopper frame 28 and supports an under cap feed cup 29 which is frictionally driven by the small shaft 2? through a friction spring 39 that is compressed by a thumb nut 3| to bear against the outer face of the feed cup.

From the foregoing, it will be observed that as the main shaft 5 is rotated, the feed cup 29 is intermittently rotated by the ratchet dog 24 and the ratchet wheel 25 at the same time the counter shaft 2i is oscillated once for each revolution of the main shaft 5. The front end of the counter shaft 2| is provided with a section of a worm drive 32 which meshes with a gear arm 34. The gear arm 34 is mounted upon and rotates about a short shaft 35. The gear arm 34 carries a ratchet dog 35 which engages a ratchet wheel 33', fixedly mounted on the short shaft 35 which extends through a hopper frame 38 and through a rivet feed cup 39. A thumb nut 40 is carried by the short shaft 35 and imposes a tension on a 1 spring 4| which bears against the outer face of the feed cup 39 to frictionally drive the feed cup when the dog 36 cooperates to drive the ratchet Wheel 31.

The front end of the counter shaft 2| (Fig. 3) carries an arm 42 which is connected with a link 44 that is mounted upon the outer end of a vertically reciprocating plunger 45 carrying an upper setting head 46 which may be provided with a centering pin 47 adapted to enter the recess in a hollow rivet being fed by the machine. The reciprocating plunger 45 is mounted in a bearing in a front frame 48 to have a reciprocating motion therein. The arm 42 and the link 44 constitute a toggle which straightens as" the plunger is forced downward, thereby applying pressure for the riveting operation.

A feed chute 49 leads from the hopper frame 28 downwardly through an opening 59 in the head frame 2 and terminates adjacent the end of a spiral feed shaft 5| which is fixedly mounted to the main shaft 5 to rotate therewith. During the operation of the machine when the shaft 5| is rotated a helical groove 52 in the feed shaft 5| constitutes a rivet feed member and a wedge shaped part 54 of the end of the feed shaft 5| comprises a separating wedge which separates the rivet to be fed forward from the series of rivets that feed down the feed chute 49 by gravity. Suitable guide plates 55 and 56 are provided adjacent the upper part of the spiral feed shaft 5| to comprise a pathway extending longitudinally over the spiral feed groove 52 to guide caps or rivets which have traveled into the helical groove 52. It thereby will be noted that each intersection of a guide path 51 with the helical groove 52 comprises a feeding station that carries forward a single cap or rivet as the feed shaft 5| is rotated by the operation of the main shaft which makes one revolution each time the machine is operated.

These under buttons or rivets are thereby caused to traverse the length of the feed shaft 5| and at the frontend of the feed shaft a side wall of the end of the helical groove 52 pushes these under buttons into a feed cup, which comprises a pair of members 58 and 59 (Figs. 1, 6, and 7) to drop upon the upper end of an anvil plunger 69 which may be recessed to accommodate the particular type of under article being deposited by the feed shaft 5| upon the anvil 6D. The feed cup members 58 and 59 form a guide for the upper end of the anvil plunger 69 and are spring pressed together by flat springs 5| and 62 carried by an anvil frame 64 which is mounted on the front lower part of the head frame 2. The under portions 65 of the feed cup members 58 and 59 are tapered inwardly so that when the anvil plunger 59 is raised, the feed cup members 58 and 59 are pushed outwardly to flex the flat springs 6| and 62. An anvil carrier 65 is mounted to reciprocate vertically in the anvil frame 94 and is provided with a pocket in which the anvil plunger 69 is locked by a lock screw 91. The bottom of the anvil plunger 69 rests against an adjustment stub screw 98 which is adjustably mounted in the anvil carrier 59 and is adapted to be locked in adjusted position by the lock nut 69 so that the relative vertical height of the operating zone of the upper end of the anvil 69 may be adjusted as to apply greater or less pressure when the setting plunger 45 forces the setting head 46 downwardly. One face of the anvil frame 94 is cut away to provide a driving bar 19 that fits into a slot II in a driving plug 12 that is mounted in an opening which is eccentrioally located in the end of the spiral feed shaft The driving plug 12 rotates in the opening in the spiral feed shaft 5| when this feed shaft is rotated by the main shaft. It, therefore, will be noted that for each revolution of the main shaft 5 and the spiral feed shaft 5|, that the anvil 60 completes one cycle of being raised and lowered. The top portion of the cycle is so arranged as to correspond to the limiting downward movement of the setting plunger 45, and, therefore, it will be noted that the setting plunger, which operates by the toggle comprising the arm 42 and the link 44, is reaching its lower limit of travel at the same time that the anvil plunger 60 is reaching its upper limit of travel and that both the downward limit travel of the setting plunger and the upper limit travel of the anvil plunger occur under conditions where great force may be exerted between these two members. The anvil plunger travels in a simple harmonic movement comprising a sine curve which reaches its upper limit by a very light movement. These combined movements of the two plungers are very effective to produce the desired pressure to complete the distorting action which securely rivets the lower fastener member to the upper fastener member thereby securely setting the fastener in the work.

A feed chute I4 is connected with the feed hopper frame 39 to feed rivet members to a rivet holder 15. This rivet holder (Figs. 3, 11, and 12) comprises a pair of L-shaped spring fingers I6 and 17. These fingers at the upper portion of the horizontal arm of the L are bent outwardly at 18 and 19 (Fig. 12), and directly beneath the outward bends are both provided with inclined slots 99. When the flange of a rivet is fed down the rivet chute, it slides directly into the rivet holder in such manner that the flange of the rivet is sustained in the slots 89 of the fingers. As the setting head 49 descends, the centering pin 4'! enters the opening in the rivet and the setting head 56 engages the bent outward flanges I8 and 79 to spread the spring fingers l6 and Ti to release the rivet and drive the same through work material resting over feed cup members 58 and 59.

A rivet separator or cut-off 8| is mounted on the feed chute I4 and is connected by a link 82 with the gear arm as so that each time this gear arm is actuated, the cut-off BI is operated to drop a single rivet downward into the rivet holder 15 while retaining in the feed chute 14 the rivets which are above the cut-off 8|.

In order to prevent buttons or rivets escaping from the guide path 57 between plates 55 and 56, a suitable cover plate 84 (Fig. 15) is mounted. over these guide plates 55 and 55. This cover plate 84 is provided with an opening 85 through which the feed cup members 58 and 59 extend. A sight slot 36 is continued from the opening 85 directly over the guide path 51. The sight slot enables the operator to observe the individual cap buttons or rivet members which are being fed forwardly by the helical groove 52 in the feed shaft 5!.

The helical feed shaft 5I shown in Fig. 1 is of such form as is adapted to feed hollow cylindrical flanged fastener members (Figs. 4 and 5). The form of the helical groove 8'! on the feed shaft I5I shown in Fig. 6 is of a type to feed cap buttons with the open sides of the buttons upwardly. The feed shaft 25I illustrated in Fig. 9 has the same type groove 252 as that shown in Fig. 1,

. the upward movement of the bolt I99.

but in Fig. 9, the helical feed member is hollow except at its ends and is provided with openings 88 through which dust and lint may drop thereby clearing the feed groove of deleterious material,

which material may continue to drop downwardlyv through an opening 89 in the lower arm of the head frame 2. This feed shaft is provided with an expulsion finger 99 which may be desirable where relatively small size members are being fed. This expulsion finger 90 has a face portion comprising a continuation of one wall of the helical groove 252 and performs the function of spaced apart caps or rivets which may be at all times viewed by the operator,

Referring to Figs. 13 and 14, which illustrate the single revolution clutch mechanism, an operating pedal 9! is mounted in the lower part of the pedestal frame I and is connected with a clutch operating link 92 to which is attached a long coiled spring 94 having one end anchored at 95 to the pedestal frame I. This long coiled spring 94 normally holds the pedal 9| raised into engagement with an adjustable stop 95. The clutch link 92 carries a pair of operating arms 91 having operating notches 98 provided in their lower front faces that normally engage the operating pin 99 in the clutch bolt I99. This bolt I09 has a cut-out portion I9I on one side into which an adjustable stop I92 extends to limit A coil spring Hi4 normally holds the bolt I99 in raised position with an operating head I95 of the bolt in the path of a head 19 of the clutch dog Ill. The operating heads I05 and I96 are bevelled in such manner that when the bolt I90 is in raised position, the clutch dog I9 is retracted against an internal coil spring Ill'l carried in an opening in the clutch dog I9 in such manner that the coil spring normally tends to slide the clutch dog I9 outwardly. The clutch dog I9 is slidably mounted in a clutch collar 9 which is fixedly secured to the main shaft 5 as previously stated. The clutch collar 9 is provided on one side with a recess I98 having a flat face I99. An extension I I9 on the clutch operating link 92 normally extends into the recess I98 due to the action of the spring III, thereby permitting the operating notches 98 to engage and overlie the operating pin 99. As soon as the pedal Si is depressed, the operating link 92 through the arms 91 cooperating with the operating pin 9 draws the clutch bolt I99 downwardly against the tension of the coiled spring I94. This withdraws the head I95 on the bolt from. beneath the head I95 on the clutch dog I9, thereby permitting the internal coil spring I91 to move the clutch dog outwardly so that the outer end thereof engages with one of the clutch studs II .or I2 mounted on the heavy drive Wheel 4 which normally freely rotates on the main shaft 5. As soon as the clutch dog I9 engages one of the clutch studs, the drive wheel operates to rotate the main shaft 5. The operation of the main shaft 5 causes the fiat face I99 to turn and engage the extension Ill] on the link 92 to withdraw the arms 91 from above the operating pin 99. This permits the coil spring I04 to raise the clutch bolt I and position the operating head I05 in the path of the clutch head I06, so that as the revolution of the main shaft continues, the bolt head I05 engages the dog head I06 and cams the dog H] inwardly thereby withdrawing the dog from engagement with the stud on the drive wheel 4. At this time, the high spot on the brake disc It has engaged the brake shoe i5 thereby stopping the rotation of the main shaft 5 with the operating parts in normal position as indicated in Figs. 1, 2, and 3.

During the single revolution of the main drive shaft 5, a receiving rivet member, such as a cap, has been dropped into the feed cup on to the anvil 6i], by the rotation of the spiral feed shaft 5|. An upper rivet member has been dropped down the feed chute 14 into the rivet holder 15 directly beneath the path of the setting head 46. As the machine continues to operate, the anvil 60 rises and the setting head 46 descends, driving the upper rivet member through the rivet holder 15 and through the work material to which the rivet is to be fastened and into the receiving cap member on the anvil 60 which is rising upward to meet the downward movement of the setting head 46. As the setting head 46 and the anvil 60 approach their limits of movement, very substantial pressure is applied to the rivet members to cause the deformation of the rivet material and complete the riveting operation.

From the foregoing, it will be observed that the present machine is composed of relatively few parts which are positive in their operation and. which function in such manner that the feeding operations of the rivet members are at all times visible to the operator. One particular feature of the present invention is the feed mechanism for the lower cap member which may comprise an open cup and wherein the rivet feed itself, namely, the end of the helical groove in the feed shaft 5| operates to comprise a cut-off to individually feed forward separate cap or under rivet members.

It is to be understood that the feed cups 39 and 29 are of such construction as to feed the upper rivet members with the rivet portions thereof delivered downwardly into the rivet holder 15 and to feed the lower rivet cap members to the spiral feed shaft 5| with the open portion of the rivet cap members positioned upwardly so that these rivet members may be properly assembled when the riveting operation occurs.

What is claimed is:

1. In a machine of the class described, the combination of means to feed upper rivet members to a rivet setter, means to feed lower rivet members to an anvil, the means to feed the lower rivet members comprising a hollow feed shaft having a spiral slot adapted to engage and separate the lower rivet members to be fed, said hollow feed shaft having openings in the side wall to afford free passage to deleterious material, and guide means to retain the lower rivet members in engagement with the spiral slot on said shaft and in separated relation to each other, and drive means to rotate said feed shaft.

2. In a machine of the class described, a main shaft, means to cause said main shaft to make one complete revolution, means to stop said main shaft at the end of a complete revolution, a counter-shaft, means connected with the main shaft to oscillate said counter-shaft for each revolution of the main shaft, a hopper to feed an upper rivet member, means to partially rotate said hopper for each oscillation of said countershaft, a second hopper to feed a lower rivet member, means to partially rotate said second hopper when said counter-shaft is oscillated, a rivet setting plunger, toggle means connecting said plunger with said counter-shaft, .a rotatable feed shaft to feed a rivet member beneath said plunger, a reciprocating anvil located beneath said plunger, means attached to and driven by said rotatable feed shaft to raise said anvil when said plunger is forced downward by said toggle mechanism, and means to feed a lower member to said anvil when said anvil is in its lowered position.

3. In a device of the class described, a setting plunger, an anvil, means to reciprocate said setting plunger toward said anvil to produce forces to distort a rivet member and set the same, a rivet holder beneath said plunger, said rivet holder comprising a pair of L-shaped spring fingers, the outer ends of said spring fingers being slotted, a rivet chute adapted to deliver .a flanged rivet between said spring fingers with the flange of said rivet extending through the slot in said spring fingers, and means to cause said spring fingers to spread to release the flange of the rivet when said plunger descends to engage the rivet supported by said spring fingers.

4. A machine of the. class described comprising' a main shaft, driving means for said main shaft, clutch means operatively connecting said driving means and'said main shaft during a. complete revolution of said main shaft and disconnecting said driving means from said main shaft at the end of each complete revolution of said main shaft, a counter shaft, eccentric means carried on the main shaft and operatively connected with said counter shaft to oscillate the same, a setting plunger, toggle mechanism connecting said plunger with said counter shaft to reciprocate said plunger when said counter shaft is oscillated, means to feed a rivet member into the path of said plunger, an anvil located beneath said plunger, a feed shaft directly connected with the main shaft to comprise an extension thereof, said feed shaft being provided with a helical groove to feed a rivet member to said anvil, means to feed a rivet member to said feed shaft, and means directly connecting said feed shaft with said anvil to raise the same when said plunger is moved downwardly.

5. In a machine of the class described, the combination of a main drive shaft, a feed shaft comprising an extension of said main shaft and directly connected thereto, said feed shaft being provided with a helical groove to feed rivet members, a feed chute adapted to feed rivet members to'said helical groove, a counter shaft, drive means on the main shaft and connected to said counter shaft to oscillate the samewhen the main shaft rotates, a toggle mechanism connected to said counter shaft, a setting plunger operated by said toggle mechanism, means to feed a rivet member beneath said plunger, an anvil adjacent said feed shaft and beneath said plunger, and an eccentric member mounted in the front end in said feed shaft and adapted to raise said anvil when said plunger descends.

6. In a machine of the class described, the combination of a main drive shaft, a feed shaft comprising an extension of said main shaft and in axial alignment therewith and directly connected thereto, said feed shaft being provided with a helical groove to feed rivet members, a

mechanism, and means to feed a rivet member beneath said plunger, an anvil adjacent said feed shaft and. beneath said. plunger, an eccentric member mounted in the front end in said feed shaft and adapted to raise said. anvil as 5 the feed shaft rotates.

JULIUS GUAELTIERE. GEORGE MEYER. 

